Desmond Injector, Patent Model

This model was submitted to the U.S. Patent Office with the application for the patent issued to John Desmond, of Cincinnati, Ohio, October 8, 1901, no. 683914; assigned to the Lunkenheimer Co.

Features of this injector are the construction of the starting lever, which with one motion operates both the steam and overflow valves and also permits the overflow valve to close independently of the lever; a removable ring of resistant metal inserted in the combining tube at its smallest diameter to receive the corroding action of the jet at that point; and an arrangement of steam and water passages designed to prevent the raising of the temperature of the feed water to such a temperature as to deposit scale within the tubes of the injector.

Reference:

This description comes from the 1939 Catalog of the Mechanical Collections of the Division of Engineering United States Museum Bulletin 173 by Frank A. Taylor.

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This page was imported from Smithsonian National Museum of American History. Released by the Smithsonian Institution under CC0 through Smithsonian Open Access.

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